Kittkatdoll's manga / #smut(360)

Half a year ago, Yanai Makoto, a normal office employee, became his friend’s guarantor for a large loan, but in the end the friend fled and left him with enormous debt of 30 million yen. Yanai became a call boy in order to pay off the debt, until one day he stumbled across a yakuza who claimed "love at first sight" and was willing to pay 5 times his price if Yanai became his personal whore…

Sadist seme, uses collar on uke, rough sex/punishment sex uke was originally a top till he met the seme consensual but the seme should've asked the uke if he was ok with his sadism and being the top.